Compilare: user.cpp: In function ‘int main()’: user.cpp:32:29: warning: format ‘%ld’ expects argument of type ‘long int*’, but argument 3 has type ‘long long unsigned int*’ [-Wformat=] scanf("%d %ld\n", &p, &n); ^ user.cpp: In function ‘int c1(int)’: user.cpp:22:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:30:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cifre5.in", "r", stdin); ^ user.cpp:31:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cifre5.out", "w", stdout); ^ user.cpp:32:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %ld\n", &p, &n); ^